* {
  margin: 0;
  padding: 0;
}
body {
  background-color: #f3f3f3;
}
header {
  background-color: #fff;
  height: 50px;
  width: 100%;
  text-align: center;
  line-height: 50px;
  font-size: 15px;
}
.gwc {
  text-align: center;
  margin-top: 90px;
}
.gwc img {
  width: 140px;
  height: 100px;
}
.gwc p {
  font-size: 14px;
  color: #333;
  padding-top: 20px;
}
.gwc span {
  margin-top: 30px;
  border-radius: 15px;
  display: inline-block;
  width: 100px;
  height: 32px;
  background-color: red;
  line-height: 8.5333vw;
  color: #fff;
}
